HomeMy WebLinkAboutLot Certifications - 08/09/2017 (3)
August 9, 2017
Mr. Dan Mogen
City of Fort Collins Storm Water Division
700 Wood Street
Fort Collins, CO 80524
(970) 221-6700
Re: Grading Certification for 2345 Adobe Drive, Lot 20 Block 3 of the Spring Creek Farms North, Filing
No. 4 Subdivision
Dear Mr. Mogen,
The purpose of this letter is to provide the grading certification for 2345 Adobe Drive, of the Spring Creek
Farms North, Filing No. 4 Subdivision, located in Fort Collins, Colorado.
Aspen Engineering reviewed the record survey, prepared by King Surveyors, with survey measurements dated
August 9, 2017. Aspen also visited the project site on Aug. 9, 2017 to visually observe grading within Lot 20
Block 3. Based on the provided record survey and visual observation, Aspen Engineering asserts that the
proposed grading appears to meet the intent of the approved grading and drainage plan.
Aspen is providing the following as the assessment of Lot 20 Block 3:
1) Grades along the north, south, east, and west property lines vary from 0.17% to approximately
2.94%. Grading around and adjacent to the residence appears to provide positive conveyance of
runoff away from the residence in accordance with the approved grading plan. The 0.17% grade is
along the back lot line, with prevailing grade falling to the backyard swale; therefore, the grade is
acceptable in this location.
2) The surveyed top-of-foundation (TOF) elevation for the residence is 44.80’, versus the proposed
TOF of 44.76.
3) Aspen noted that the downspouts on the southwest, northwest, northeast, and southeast corners of
the residence, along with the northeast corner of the garage and rear patio (6 total) appear to be
located in satisfactory areas, with runoff being conveyed away from the residence and garage.
LEGEND
4.3% = GRADE PER SURVEYED
ELEVATIONS
RD
=ROOF DRAIN
NOTE: THIS DRAWING HAS BEEN MODIFIED BY
ASPEN ENGINEERING FOR THE PURPOSES OF A
GRADING CERTIFICATION
PLAN TOF = 44.76
22
%
1.00%1.62%
2.00%
2.00%
2.02%
2.94%3%
RD RD
RD
RD
RD
RD
24
%
18
.
5
%
20
%
13%
24%
11%
2.2
%
1.9
%
APPROVED PLAN ELEV (TYP)
0.
1
7
%